Compute and return simulated chirp function.
This function computes and returns the coordinates of the reflected simulated chirp function described in Nason and Silverman, 1995. This function is a useful test function for evaluating wavelet shrinkage and time-scale analysis methodology as its frequency changes over time.
simchirp(n=1024)
n |
The number of ordinates from which to sample the chirp signal. |
This function computes and returns the x and y coordinates of the reflected chirp function described in Nason and Silverman, 1995.
The formula for the reflected simulated chirp is *formula*
The chirp returned is a discrete sample on n equally spaced points between -1 and 1.
A list with two components:
x |
a vector of length |
y |
a vector of length |
Version 3.5.3 Copyright Guy Nason 1994
G P Nason
# # Generate the chirp # test.data <- simchirp()$y ## Not run: ts.plot(test.data)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.